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Methods of vitamins assay
338
BIOCHIMICA ET BIOPHYSICA ACTA
BOOK
VOL. 2
(I948)
REVIEWS
Methods o] Vitamins Assay. P r e p a r e d a n d e d i t e d b y T h e A s s o c i a t i o n of V i t a m i n Chemists, Inc. Interscience Publishers, p p . IO i l l u s t r a t i o n s . P r i c e $ 3.50.
Inc.,
N e w Y o r k , N . Y . 1947, X V I I I
+ 189
This book contains the following chapters: I Sampling for vitamin analysis; 2 Vitamin A; 3 Carotene; 4 Thiamine; 5 R i b o f a v i n ; 6 Niacin; 7 Ascorbic acid; 8 Other vitamin methods; 9 Use of check samples in control of vitamin methods. The publication of this book marks a considerable advance on the way to standardization of vitamin methods, the editors being chiefly interested in estimation of the vitamins in food-stuffs and pharmaceuticals. The method.~ given in literature for the determination of each vitamin v a r y from one to many. Therefore it is necessary to introduce uniformity and to select the best methods available. This book contains methods based on chemical, physical and microbiological principles. The Association of Vitamin Chemists offers four types of food-stuffs for distribution of reference standards. To the discussion of each vitamin a list has been added which contains a n u m b e r of products analysed for their vitamin content. This does not mean t h a t the determination of vitamins in other products will give rise to difficulties, though one must realise t h a t this m a y be possible. The reviewer has looked in vain for some methods which have found extensive application, e.g. the chemical estimation of v i t a m i n A in blood serum and the chemical estimation 6f niacin. I t is hoped t h a t the authors wilt in future extend the scope of this manual by including methods for all vitamins, because m a n y methods not mentioned in this book are widely used by investigators. This book is undoubtedly entitled to a wide-spread use on account of the good selection of methods made by the editors. A. EMMERIE (Utrecht)
Plant and Soil. I n t e r n a t i o n a l J o u r n a l of P l a n t N u t r i t i o n , P l a n t C h e m i s t r y , Soil M i c r o b i o l o g y a n d S o i l - b o r n e P l a n t D i s e a s e s . I s s u e d u n d e r t h e a u s p i c e s of t h e N e t h e r l a n d s S o c i e t y of A g r i c u l t u r a l S c i e n c e . E d i t 6 p a r D. I. ARNON, B e r k e l e y ; J . BAEYENS, L o u v a i n ; F. C. GERRETSEN, G r o n i n g e n ; E . G. MULDER, G r o n i n g e n ; A. C. SCHUFFELEN, W a g e n i n g e n , a s s i s t ~ s p a r u n C o m i t 6 d e c o n s u l t a t i o n , p u b l i ~ p a r Martinus Nijhoff, The Hague. Le p6riodique publie des t r a v a u x originaux en anglais, fran~ais et allemand, ainsi que des courtes communications (letters to the editors). Para~t 4 lois par an, un volume annuel c o m p t a n t environ 400 pages. Prix du volume: ft. boll. 17.5o. L'6tude du sol a cess~ d'etre p u r e m e n t statique et descriptive. Dans l'esprit des fondateurs, BOUSSlNGAULT, LIEBm, elle 6taft d6j~ dynamique et le devient toujours plus. On parle du "Sol, ~tre vivant", du "Dynamisme du sol", formules heureuses traduisant parfaitement l'esprit dans lequel son ~tude est entreprise. I1 suffit d'6voquer quelques probl~mes: processus biochimiques d6termin~s par les microorganismes, action des 616ments olygo-synergiques, des facteurs de croissance du sol, pour comprendre que l'6tude syst6matique de ce dernier conduira A la solution de maints probl~mes de physiologie v6g6tale. E n derni~re analyse, l'6tude du sol, duquel tout p a r t et auquel tout retourne, est l'alpha et l'om~ga de la Vie et de la Biologie. L'6dition du nouveau p~riodique "Plant and Soil" dolt ~tre salu6e comme un 6v6nement heureux dont toute la physiologie et la chimie v~g~tales, l'agronomie et la microbiologie du sol profiteront. Le succ~s lui est assur6. W. H. SCHOPFER (Berne)
BIOCHIMICA ET BIOPHYSICA ACTA
BOOK
VOL. 2
(I948)
REVIEWS
Methods o] Vitamins Assay. P r e p a r e d a n d e d i t e d b y T h e A s s o c i a t i o n of V i t a m i n Chemists, Inc. Interscience Publishers, p p . IO i l l u s t r a t i o n s . P r i c e $ 3.50.
Inc.,
N e w Y o r k , N . Y . 1947, X V I I I
+ 189
This book contains the following chapters: I Sampling for vitamin analysis; 2 Vitamin A; 3 Carotene; 4 Thiamine; 5 R i b o f a v i n ; 6 Niacin; 7 Ascorbic acid; 8 Other vitamin methods; 9 Use of check samples in control of vitamin methods. The publication of this book marks a considerable advance on the way to standardization of vitamin methods, the editors being chiefly interested in estimation of the vitamins in food-stuffs and pharmaceuticals. The method.~ given in literature for the determination of each vitamin v a r y from one to many. Therefore it is necessary to introduce uniformity and to select the best methods available. This book contains methods based on chemical, physical and microbiological principles. The Association of Vitamin Chemists offers four types of food-stuffs for distribution of reference standards. To the discussion of each vitamin a list has been added which contains a n u m b e r of products analysed for their vitamin content. This does not mean t h a t the determination of vitamins in other products will give rise to difficulties, though one must realise t h a t this m a y be possible. The reviewer has looked in vain for some methods which have found extensive application, e.g. the chemical estimation of v i t a m i n A in blood serum and the chemical estimation 6f niacin. I t is hoped t h a t the authors wilt in future extend the scope of this manual by including methods for all vitamins, because m a n y methods not mentioned in this book are widely used by investigators. This book is undoubtedly entitled to a wide-spread use on account of the good selection of methods made by the editors. A. EMMERIE (Utrecht)
Plant and Soil. I n t e r n a t i o n a l J o u r n a l of P l a n t N u t r i t i o n , P l a n t C h e m i s t r y , Soil M i c r o b i o l o g y a n d S o i l - b o r n e P l a n t D i s e a s e s . I s s u e d u n d e r t h e a u s p i c e s of t h e N e t h e r l a n d s S o c i e t y of A g r i c u l t u r a l S c i e n c e . E d i t 6 p a r D. I. ARNON, B e r k e l e y ; J . BAEYENS, L o u v a i n ; F. C. GERRETSEN, G r o n i n g e n ; E . G. MULDER, G r o n i n g e n ; A. C. SCHUFFELEN, W a g e n i n g e n , a s s i s t ~ s p a r u n C o m i t 6 d e c o n s u l t a t i o n , p u b l i ~ p a r Martinus Nijhoff, The Hague. Le p6riodique publie des t r a v a u x originaux en anglais, fran~ais et allemand, ainsi que des courtes communications (letters to the editors). Para~t 4 lois par an, un volume annuel c o m p t a n t environ 400 pages. Prix du volume: ft. boll. 17.5o. L'6tude du sol a cess~ d'etre p u r e m e n t statique et descriptive. Dans l'esprit des fondateurs, BOUSSlNGAULT, LIEBm, elle 6taft d6j~ dynamique et le devient toujours plus. On parle du "Sol, ~tre vivant", du "Dynamisme du sol", formules heureuses traduisant parfaitement l'esprit dans lequel son ~tude est entreprise. I1 suffit d'6voquer quelques probl~mes: processus biochimiques d6termin~s par les microorganismes, action des 616ments olygo-synergiques, des facteurs de croissance du sol, pour comprendre que l'6tude syst6matique de ce dernier conduira A la solution de maints probl~mes de physiologie v6g6tale. E n derni~re analyse, l'6tude du sol, duquel tout p a r t et auquel tout retourne, est l'alpha et l'om~ga de la Vie et de la Biologie. L'6dition du nouveau p~riodique "Plant and Soil" dolt ~tre salu6e comme un 6v6nement heureux dont toute la physiologie et la chimie v~g~tales, l'agronomie et la microbiologie du sol profiteront. Le succ~s lui est assur6. W. H. SCHOPFER (Berne)